How bad is it? It's an unerotic unthrilling erotic thriller.
Should you see it? No.
Remaking "Fatal Attraction" with some black magic elements wasn't enough, they marketed this as an erotic thriller (it's more a mild horror). Mark Hamill plays an art gallery owner who has an affair with Appolonia Kotero, but when he goes back to his girlfriend, he finds a sort of curse has been placed on him. This leads to sexual dysfunction, maybe cancer or AIDS, insanity and murder. He tries to have an exorcism performed and there's a twist ending you should see a mile away. There's a microwave substituting for a witch's cauldron, Hamill in tight underwear and a brief shot of Appolonia nude. A mediocre version of the Carlos Santana title song gets played.